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## Interface GridHeader

-     public interface GridHeader

  Properties and methods related to the ListGrid header. ListGrid headers are implemented as a `Toolbar` of buttons shown at the top of the ListGrid (one button per column).
  The toolbar header provides UI for interacting with the ListGrid fields directly (sorting, resizing, reordering columns, etc).
  See Also:
    `ListGrid.setHeaderHeight(int)`, `ListGrid.setShowHeader(java.lang.Boolean)`, `ListGrid.headerTitleClipped(int)`, `ListGrid.headerHoverHTML(int, java.lang.String)`, `com.smartgwt.client.widgets.grid.ListGrid#headerClick`, `HeaderDoubleClickEvent`, `ListGrid.displayHeaderContextMenu(com.smartgwt.client.widgets.Canvas, int[])`, `ListGrid.getHeaderContextMenuItems(java.lang.Integer)`, `HeaderHoverEvent`, `ListGridField.getSpannedHeaderBaseStyle()`, `ListGrid.getSpannedHeaderBaseStyle()`, `ListGrid.getHeader()`, `ListGrid.getHeaderContextMenu()`, `ListGrid.getSpanContextMenu()`, `ListGrid.getHeaderHeight()`, `ListGrid.getShowHeader()`, `ListGrid.getHeaderBarStyle()`, `ListGrid.getHeaderBackgroundColor()`, `com.smartgwt.client.widgets.grid.ListGrid#getHeaderButtonConstructor`, `ListGrid.getHeaderBaseStyle()`, `ListGrid.getHeaderTitleStyle()`, `ListGrid.getFrozenHeaderBaseStyle()`, `ListGrid.getFrozenHeaderTitleStyle()`, `com.smartgwt.client.widgets.grid.ListGrid#getHeaderButtonDefaults`, `ListGrid.getHeaderButtonProperties()`, `ListGrid.getClipHeaderTitles()`, `com.smartgwt.client.widgets.grid.ListGrid#getSorterConstructor`, `ListGrid.getSorterButtonTitle()`, `com.smartgwt.client.widgets.grid.ListGrid#getSorterDefaults`, `com.smartgwt.client.widgets.grid.ListGrid#getSorterProperties`, `ListGrid.getShowHeaderContextMenu()`, `ListGrid.getShowHeaderSpanContextMenu()`